Journal
SENSORS AND ACTUATORS B-CHEMICAL
Volume 194, Issue -, Pages 460-469Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2014.01.006
Keywords
Hybrid material; Graphene; Terthiophene; Electrochemical detection; Hydroquinone; Catechol
Funding
- Chonnam National University
Ask authors/readers for more resources
The GO-TT-CNT hybrid material was prepared by the in-situ polymerization of graphene oxide (GO), multi-walled carbon nanotube (CNT), and terthiophene (TT). The GO-TT-CNT hybrid material was characterized via Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), and field emission-scanning electron microscope (FE-SEM). The electrochemical detections of hydroquinone (HQ) and catechol (CC) were verified via cyclic voltammetry (CV), differential pulse voltammetry (DPV), and amperometric response. Electrochemically reduced GO-TT-CNT [ER( GO-TT-CNT)] was obtained through the electrochemical reduction of GO-TT-CNT in a PBS solution (pH 5). The ER( GO-TT-CNT) was employed to detect HQ and CC. The effects of ER(GO-TT-CNT) in various pH (pH 4.04-9.01) in the PBS solution were investigated for the detection of HQ and CC. The detection limits of HQ and CC were 3.5 x 10(-2) and 4.9 x 10(-3) mu M, respectively. Resorcinol (RS), H2O2, and ascorbic acid (AA) as interference materials showed negligible effects on the HQ and CC responses, demonstrating the high selectivity of the proposed biosensor. (C) 2014 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available